We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Dimensional regularization for the particle transition amplitude in curved space.
- Authors
Corradini, Olindo; Crispo, Luigi; Muratori, Maurizio
- Abstract
We compute the perturbative short-time expansion for the transition amplitude of a particle in curved space time, by employing dimensional regularization (DR) to treat the divergences which occur in some Feynman diagrams. The present work generalizes known results where DR was applied to the computation of one-loop effective actions, which in the worldline approach are linked to particle path integrals on the circle, i.e. with periodic boundary conditions. The main motivation of the present work comes from revived interest in particle transition amplitudes in curved space-times, due to their use in the recently proposed worldline quantum field theory (in curved space-time).
- Subjects
QUANTUM field theory; PATH integrals; EMPLOYEE motivation; SPACETIME; FEYNMAN diagrams
- Publication
European Physical Journal C -- Particles & Fields, 2022, Vol 82, Issue 1, p1
- ISSN
1434-6044
- Publication type
Article
- DOI
10.1140/epjc/s10052-022-10026-4